Tehri Dam shining bright at night. Situated on the Bhagirathi River, this is the tallest dam in India! But this isn’t all Tehri is known for. Every year, the Uttarakhand Tourism Development Board also organises the Tehri Lake Festival in the region, which is packed with a number of adventure sports and fun activities. On offer in this two-day event are boating, jet skiing, banana boat rides, water skiing, surfing, canoeing, river-rafting, kayaking, et al.